Bytebeats I've composed (click to play)

(((t>>4)|(t&t>>7))*((t>>17)%3))|((5*(t|(t>>5)))|(32&(3*t|(t>>8)))^(5*(t|(t>>5)))|(5*t|(t>>8)))^(5*t&t>>10)<<((t>>16)%3)
(((t>>9)|t|(t>>11))*10)&((5*t)|(t>>10))|(t^(t%255))
((t * ((t>>12&t>>10)&63&t>>2))&64)|((t>>3)*((((t>>12)%3)|((t>>12)%2))))

Explanation:

Bytebeats are a kind of mathematical music that was discovered in 2011. They are unusual in that very simple functions can produce relatively complex sounds. Probably the best collection of resources on the topic is this site: http://canonical.org/~kragen/bytebeat/